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Telesis PX24 Hybrid IP PBX Business Phone Systems , X1 TDM - IP Telephony Switching Systems, and Stillink Combined VoIP Gateway and Signaling Converters are designed and manufactured by `Telesis Telekomunikasyon Sistemleri San. ve Tic. A.S.` (Telesis A.S.)

Established in 1983, Telesis A.S. has grown rapidly as a leading-edge provider of solutions for TDM Telephony (like Central Office, Rural, Tandem, Signaling Converter, ISDN PBX) and IP Telephony (like IP PBX, IP Phone, VoIP Gateway)applications. With 25 years experience, Telesis A.S. has delivered to its customers over 3 million lines and users. Our products have been chosen by public- and private-sector entities in various countries worldwide. Telesis systems have been installed in more than forty countries.

Telesis A.S.`s excellent reputation in international markets rests on excellent product design and a competitive cost/performance ratio.